Indicator C3 — Duplicate or Near-Duplicate Projects

AI-verified / Na-verify ng AI Data as of October 21, 2026

Duplicate or Near-Duplicate Projects

Very similar descriptions within ~100m or identical coordinates across contracts/years.

This is a statistical anomaly or indicator worth examining — not proof of wrongdoing, fraud, or corruption against any person.

Indicator: contracts 23NC0044 and 23NC0033 have near-identical descriptions about 22 m apart (funding year 2023; ₱9.80M, ₱9.80M). Worth checking whether they cover the same works. It is possible these are two segments of the same riverbank protection project, described slightly differently.

Public record entityConstruction of Riverbank Protection, Barangay Johnson, Loreto, Agusan Del Sur

LocationLORETO (AGUSAN DEL SUR), AGUSAN DEL SUR, Region XIIIContract 23NC0033

Amount₱9,800,000.00 sumbong source

Only contractors and government agencies named in public procurement records are shown. Private individuals are not named.

Satellite before / after

Esri Wayback · ~0.5 mLocation approximate

Before capture: 2023-04-07 · Maxar

After capture: 2025-10-02 · Vantor

Satellite comparison for public reference — not proof of completion or non-completion.

Imagery may not show small or linear works; no visible change is not evidence of wrongdoing.

Imagery © Esri, Maxar, Earthstar Geographics, and the GIS User Community

Caveats & resolution

Esri World Imagery Wayback (~0.5–1 m); dates are archive release dates, not capture timestamps.
Imagery may not show small or linear works; no visible change is not evidence of wrongdoing.
DPWH coordinates can be approximate; marker shows the imagery center (may be snapped to riverbank/coast).

Disclaimer

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How this was checked

publish · confidence 0.85

Model: gpt-4.1

Prompt: v4.1

Checked: October 22, 2026

The two project titles are near-identical, both refer to riverbank protection in Barangay Johnson, Loreto, Agusan del Sur, funded in the same year, by the same contractor, and are only 22 meters apart. The only difference is that one title specifies 'along Ihawan River' and splits 'river bank' while the other uses 'Riverbank Protection' as a single phrase. 'Ihawan River' is likely the river at Barangay Johnson, not a distinguishing marker for a different site. There are no phase, package, section, or sitio markers distinguishing the works. This fits the rule's criteria for a possible duplicate or overlapping project.

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Project completion

Schedule fields from DPWH transparency portal records and the Sumbong sa Pangulo flood-control list — not inferred beyond those columns.

Reported complete (DPWH): 1Ongoing: 0Delayed: 0Status unknown: 0

Project	Prog.	Target end	Actual end	Days late	Status
Construction of Riverbank Protection, Barangay Johnson, Loreto, Agusan Del Sur23NC0033Flood control	100%	October 17, 2023	October 15, 2023	—	completedsumbong source

Start: April 21, 2023 · Source fetched October 21, 2026

Rule Definition

Title similarity + distance or shared coordinates within municipality.

Triggering Data & citations

Similar project description near another contract in the same municipality

{
  "contractId": "23NC0033",
  "fundingYear": 2023,
  "municipality": "LORETO (AGUSAN DEL SUR)",
  "distanceMeters": 21.918197130815216,
  "titleSimilarity": 0.887388801674516
}

Source documents

sumbong — https://raw.githubusercontent.com/rukku/sumbongsapangulo.ph-datasets/main/flood_control_projects.geojsonFetched October 21, 2026

Possible Innocent Explanations

Phased construction seasons
Upstream/downstream segments recorded separately